Saw a doco about the Gallopoli fiasco - it seems the real problem was the geology, followed by the lack of accurate aerial survey maps (1915!) which resulted in poor planning. Churchill was responsible for this, and it haunted him the rest of his life: don't forget that he was obsessive about ensuring the D-Day landings were well planned.

In some ways Gallopoli was almost a medieval type battle: 100 men with a few well sited Maxims were able to obstruct 3,000 troops in some cases.